[    2.143040] ip (189) used greatest stack depth: 12368 bytes left
[   17.013493] ip (1664) used greatest stack depth: 12128 bytes left
[   17.037711] ip (1673) used greatest stack depth: 12088 bytes left
[  530.569457] pm_nl_ctl (25818) used greatest stack depth: 11944 bytes left